Results 41 to 50 of about 387,320 (324)

Online Unsupervised Multi-view Feature Selection

open access: yes, 2016
In the era of big data, it is becoming common to have data with multiple modalities or coming from multiple sources, known as "multi-view data". Multi-view data are usually unlabeled and come from high-dimensional spaces (such as language vocabularies ...
He, Lifang   +4 more
core   +1 more source

Unsupervised feature selection method for intrusion detection system [PDF]

open access: yes, 2015
© 2015 IEEE. This paper considers the feature selection problem for data classification in the absence of data labels. It first proposes an unsupervised feature selection algorithm, which is an enhancement over the Laplacian score method, named an ...
Ambusaidi, MA, He, X, Nanda, P
core   +2 more sources

Efficient Feature Ranking and Selection Using Statistical Moments

open access: yesIEEE Access
Unsupervised feature selection methods can be more efficient than supervised methods, which rely on the expensive and time-consuming data labeling process.
Yael Hochma, Yuval Felendler, Mark Last
doaj   +1 more source

Cluster Density Properties Define a Graph for Effective Pattern Feature Selection

open access: yesIEEE Access, 2020
Feature selection is a challenging problem that occurs in the high-dimensional data analysis of many major applications. It addresses the curse of dimensionality by determining a small set of features to represent high-dimensional data without ...
Khadidja Henni   +2 more
doaj   +1 more source

Labeling the Features Not the Samples: Efficient Video Classification with Minimal Supervision

open access: yes, 2015
Feature selection is essential for effective visual recognition. We propose an efficient joint classifier learning and feature selection method that discovers sparse, compact representations of input features from a vast sea of candidates, with an almost
Baluja, Shumeet   +3 more
core   +1 more source

Novel feature selection method via kernel tensor decomposition for improved multi-omics data analysis

open access: yesBMC Medical Genomics, 2022
Background Feature selection of multi-omics data analysis remains challenging owing to the size of omics datasets, comprising approximately $$10^2$$ 10 2 – $$10^5$$ 10 5 features. In particular, appropriate methods to weight individual omics datasets are
Y-h. Taguchi, Turki Turki
doaj   +1 more source

Unsupervised Feature Selection and Clustering Optimization Based on Improved Differential Evolution

open access: yesIEEE Access, 2019
The feature selection method based on supervised learning has been widely studied and applied to the field of machine learning and data mining. But unsupervised feature selection is still a tricky area of research because the unavailability of the label ...
Tao Li, Hongbin Dong
doaj   +1 more source

Performance analysis of unsupervised feature selection methods

open access: yes, 2012
Feature selection (FS) is a process which attempts to select more informative features. In some cases, too many redundant or irrelevant features may overpower main features for classification.
Inbarani, H. Hannah   +2 more
core   +1 more source

UNLABELED SELECTED SAMPLES IN FEATURE EXTRACTION FOR CLASSIFICATION OF HYPERSPECTRAL IMAGES WITH LIMITED TRAINING SAMPLES [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2015
Feature extraction plays a key role in hyperspectral images classification. Using unlabeled samples, often unlimitedly available, unsupervised and semisupervised feature extraction methods show better performance when limited number of training samples ...
A. Kianisarkaleh   +2 more
doaj   +1 more source

Adaptaquin is selectively toxic to glioma stem cells through disruption of iron and cholesterol metabolism

open access: yesMolecular Oncology, EarlyView.
Adaptaquin selectively kills glioma stem cells while sparing differentiated brain cells. Transcriptomic and proteomic analyses show Adaptaquin disrupts iron and cholesterol homeostasis, with iron chelation amplifying cytotoxicity via cholesterol depletion, mitochondrial dysfunction, and elevated reactive oxygen species.
Adrien M. Vaquié   +16 more
wiley   +1 more source

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